On September 23, 2013, I had a dental bridge installed to my upper teeth with a Pontic Porcelain/Ceramic. On June 14, 2015 I felt a break line on my bridge, touching it with my finger nail, part of the bridge broke apart. From what I have read that bridges suppose to last at least 5-10 years, is this true! Question: what is the causes of the bridge breakdown and am I paying to much for the bridge work, my insurance does not cover nothing. thank you....Aloha...Robert Souza